QCN29010-1991标准（英文版）

China Automotive Industry StandardTypes, Sizes and Technical Requirements of Low Voltage Automotive Wiring TerminalsQCn 29010-91Replacing JB 1450-74JB 1451-74JB 1452-741 Subject and ScopeThe standard specifies the types, sizes and technical requirements of low voltage automotive wire terminals. This standard is applicable to low voltage automotive bolt-connected wire terminals (hereafter referred to as terminal).2. Quoted StandardsGB 2060 Brass StripsGB 1804 Tolerances and Fits，Limit Deviations of Dimensions without Tolerance IndicationQCn 29009 Technical Specifications for Automotive Wiring Terminals3 Types and Codes3.1 Wiring terminals can be classified into three types according to their shapes: round, fork and transversal fork, the types and codes of which are given in Table 1.Table 1Terminal TypesCodesRound Wiring TerminalYForkStraight TerminalCZBayonet TerminalCKTransversal Fork Wiring TerminalHC3.2 The wiring terminal types consist of three parts: wiring terminal codes, fastening bolt diameter and maximum wire section. Examples of markings:a. Round wiring terminalWiring terminal codes (See Table 1)Fastening bolt diameter (mm)Maximum wire section (mm2)Approved by China National Automotive Industry Corp. on May 16, 1991Effective date: June 01, 1991 5QCn 29010-91b. Transversal Fork Wiring TerminalWiring terminal codes (See Table 1)Fastening bolt diameter (mm)Maximum wire section (mm2)Leftward3.3 Specifications and dimensions3.3.1 See Figure 1 and Table 2 specifications and dimensions of round wiring terminals. The shape of double dots line in Figure 1 is chosen by the manufacturer as required.Figure 1Table 2mmTerminal TypesBolt Diametersd1DLL1BApplicable Wire Sections mm2Y31.533.3815640.60.51.5Y41.544.3177Y51.555.39.5Y61.566.512199Y81.588.5142111Y4444.3817762.54Y5455.39.5Y6466.512199Y8488.5142111Y1041010.518.52313Y1241212.52515Y5855.39.517780.868Y6866.512199Y8888.5142111Y1081010.518.523131.0Y1281212.525153.3.2 Fork wiring terminals included straight fork terminals and bayonet fork terminals, and their specifications and dimensions are as follows:3.3.2.1 See Figure 2 and Table 3 for specifications and dimensions of straight fork terminals.Figure 2Table 3mmTerminal TypesBolt Diametersd1LL1L2ABApplicable Wire Sections mm2CZ41.544.319966100.60.51.5CZ51.555.3CZ4444.32.54CZ5455.33.3.2.2 See Figure 3 and Table 4 for specifications and dimensions of bayonet fork terminals.Figure 3Table 4mmTerminal TypesBolt Diametersd1DLL1L2abApplicable Wire Sections mm2CK41.544.391994.51.53.50.60.51.5CK51.555.3105.04.2CK4444.394.53.52.54CK5455.3105.04.23.3.3 See Figure 4 and Table 5 for specifications and dimensions of transversal fork terminals.Figure 4Table 5mmTerminal TypesBolt Diametersd1BLL1L2Applicable Wire Sections mm2HC41.544.397.54.550.60.51.5HC51.555.3115.5HC4444.39114.52.54HC5455.311125.5Since symmetrical shapes may exist at the ends of the terminals, as shown in Figure 4, special codes are applied after the terminal types for sake of distinguishing one from another, namely, letter L for leftward, letter R for rightward. For example, HC4-1.5L, HC5-4R, etc.4 Technical Requirements4.1 Material(s): brass strips and H62 shall comply with the specifications of GB 2060 or be decided between the supplier and consumer.4.2 Covering layer: to be decided between the supplier and consumer.4.3 Dimension tolerance: IT 13 is adopted according to the specifications of GB 1804.4.4 Other technical requirements shall comply with QCn 29009.Additional Explanatory Notes:This standard is proposed by China National Automotive Industry Corp.This standard is under the managem